Appendix D—Ratings, Cooling and Power Losses—Inside-the-Delta
62 S811+ Soft Starter MN03900001E—November 2012
Power Losses
The following table lists the maximum power loss for each S811+ Soft Starter when it is operating
in bypass at the maximum frame size current. These losses should be used in conjunction with the
losses of another cabinet mounted device to determine the enclosure size and any cooling
requirements.
Maximum Power Loss
Catalog
Number
FLA Current
Range Inline
FLA Current Range
Inside-the-Delta Power Loss (Watts)
S811+N37… 11–37 amps 19–65 amps 30
S811+N66… 20–66 amps 35–114 amps 33
S811+R10… 32–105 amps 55–182 amps 47
S811+R13… 42–135 amps 73–234 amps 55
S811+T18… 56–180 amps 97–311 amps 37
S811+T24… 75–240 amps 130–415 amps 40
S811+T30… 95–304 amps 164–526 amps 45
S811+U36… 112–360 amps 193–623 amps 76
S811+U42… 131–420 amps 227–727 amps 92
S811+U50… 156–500 amps 270–865 amps 116
S811+V36… 112–360 amps 193–623 amps 56
S811+V42… 131–420 amps 227–727 amps 64
S811+V50… 156–500 amps 270–865 amps 78
S811+V65… 203–650 amps 352–1125 amps 109
S811+V72… 225–720 amps 389–1246 amps 127
S811+V85… 265–850 amps 458–1471 amps 164
S811+V10… 312–1000 amps Not Available 215
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